The Underused Housing Tax (UHT) in Canada has been one of the most misunderstood federal tax measures of the past several years, and Canadian-incorporated businesses have borne the brunt of the confusion. Marketed as a tax on foreign owners of vacant property, the Act quietly swept many private Canadian corporations into a filing obligation, often without any tax actually being owed. There is significant news for 2025 and beyond, but as we explain below, that news does not erase what your corporation may still owe for earlier years.
If your corporation holds residential property, this guide explains who the UHT applies to, the corporate filing trap that caught so many owners off guard, what the 2024 amendments changed, and why the obligations for 2022 through 2024 still demand attention even though the tax itself is being repealed.
What Is the Underused Housing Tax?
The Underused Housing Tax (UHT) is a federal 1% annual tax on the value of vacant or underused residential property in Canada, introduced under the Underused Housing Tax Act (SC 2022, c. 5, s. 10) and in force as of January 1, 2022. It was designed to target non-resident, non-Canadian owners, but its filing rules also applied to certain Canadian private corporations, partnerships, and trusts that hold residential property.
The tax is calculated at 1% of a property's "taxable value," which is generally the greater of its municipal assessed value and its most recent sale price on or before December 31 of the calendar year. The federal government published its plain-language overview of the rules in CRA Notice UHTN1, and the full statute is available through the Underused Housing Tax Act consolidated text.
Here is the surprise that caught so many business owners. The Act drew a line between two categories of owner, and the default side of that line carried obligations even for purely Canadian companies that owed nothing. Understanding which side your corporation falls on, year by year, is the heart of UHT compliance.
Does a Canadian Corporation Have to File the UHT Return?
The most important and most misunderstood point about the UHT is this: being exempt from paying the tax is not the same as being exempt from filing the return. A Canadian corporation could owe zero dollars in UHT and still face thousands of dollars in penalties for failing to file the required form.
The Act sorts every owner of residential property into one of two groups. "Excluded owners" have no UHT obligations at all. "Affected owners" must file an annual return for each residential property they own, and they may also owe tax. The structure is unforgiving by design: if you are not specifically listed as an excluded owner, you are automatically an affected owner.
Who is an excluded owner
Excluded owners carry no filing duty whatsoever. According to CRA's guidance on who must file, this category includes:
- Canadian citizens and permanent residents who own property in their personal capacity
- Publicly traded Canadian corporations whose shares are listed on a Canadian stock exchange on December 31
- Registered charities, cooperative housing corporations, municipalities, universities, and hospitals
Beginning with the 2023 calendar year, this list also grew to include specified Canadian corporations, partners of specified Canadian partnerships, and trustees of specified Canadian trusts. We cover that key change in detail further below.
The trap: who is an affected owner
An affected owner must file Form UHT-2900 for each residential property it owns, even when no tax is due. For corporations, the affected owner category historically captured:
- Private Canadian corporations that own residential property and do not qualify as specified Canadian corporations
- Corporations incorporated outside Canada
- Foreign individuals who are neither Canadian citizens nor permanent residents
- Trusts and partnerships that do not qualify as specified Canadian entities
The core of the trap is the gap between paying and filing. An affected owner might qualify for an exemption from the tax, perhaps because the property is rented to a qualifying long-term tenant, and still owe nothing. But the exemption applies only to the tax. The filing obligation remains. Many corporate owners assumed that because their property was occupied and no tax was payable, they had nothing to do. That assumption exposed them to penalties.
This is precisely the kind of nuance where guidance from experienced corporate tax lawyers prevents an expensive and entirely avoidable mistake.
What Types of Property Trigger UHT Obligations?
The UHT does not apply to every piece of real estate a corporation might own. The Act defines "residential property" narrowly, and that definition determines whether your company has any exposure at all.
In scope for UHT purposes are detached houses or similar buildings containing not more than three dwelling units, including the underlying land, as well as semi-detached houses, rowhouse units, and residential condominium units. A "dwelling unit" is a self-contained residence with a private kitchen, a private bathroom, and a private living area.
Out of scope are commercial buildings, office buildings, industrial property, and apartment buildings with four or more units, which fall outside the definition because of the three-unit cap on the detached-house category. The line between commercial and residential real estate carries consequences across many areas of business law, and understanding the distinction between commercial and residential property in Ontario is useful well beyond the UHT.
The definition matters most for corporations that hold mixed portfolios. Consider a holding company that owns both a triplex and a strip mall. Only the triplex is a "residential property" under the Act, so any UHT filing obligation attaches to the triplex alone. The commercial property simply does not figure into the analysis.
The 2024 Amendments: Relief for Some Corporate Owners, But Not All
The federal government acknowledged that the UHT had imposed real compliance burdens on ordinary Canadian businesses that were never the intended target. The response came through Bill C-69, the Budget 2024 implementation legislation, which received royal assent on June 20, 2024.
What changed and when
Effective for the 2023 calendar year and every year after, specified Canadian corporations, partners of specified Canadian partnerships, and trustees of specified Canadian trusts became excluded owners. In plain terms, a qualifying Canadian corporation no longer had to file a UHT return at all, starting with the 2023 year. CRA Notice UHTN4 sets out the details of this relief.
The specified Canadian corporation test
A "specified Canadian corporation" is a corporation incorporated or continued under the laws of Canada or a province where, on December 31 of the calendar year, less than 10% of the equity value or voting rights is owned or controlled, directly or indirectly, by either:
- individuals who are neither Canadian citizens nor permanent residents, or
- corporations incorporated outside Canada
The practical takeaway is straightforward. A Canadian corporation with less than 10% foreign ownership generally qualifies as a specified Canadian corporation and, from the 2023 year onward, is an excluded owner with no UHT return to file. One important condition is that the corporation must own the property in its own right, not in its capacity as a trustee of a trust or a partner of a partnership, to rely on this exclusion.
Who still had to file for 2023 and 2024
The 2024 relief was meaningful but not universal. Despite the amendments, the following remained affected owners with full filing obligations for the 2023 and 2024 years:
- Private Canadian corporations with 10% or more foreign ownership or control
- Corporations incorporated outside Canada
- Individuals who are neither Canadian citizens nor permanent residents
- Trusts and partnerships that do not qualify as specified Canadian entities
This is why describing the UHT as a universal "trap" overstates the case. A great many private Canadian corporations with no foreign ownership qualified as specified Canadian corporations and have been excluded since 2023. The corporations that remained on the hook were primarily those with meaningful foreign ownership, plus everyone for the 2022 year, which the new exclusions did not reach.
The 2022 year still stands apart
The specified Canadian corporation exclusion applies only from 2023 forward. For the 2022 calendar year, a private Canadian corporation that owned residential property was an affected owner and had to file, even if that same corporation would clearly qualify as a specified Canadian corporation today. CRA provided transitional administrative relief that waived penalties and interest for late-filed 2022 returns provided the return was filed and any tax paid by April 30, 2024, but the underlying obligation to file was never eliminated. A corporation that still has not filed its 2022 return cannot assume the matter has quietly resolved itself.
Lower minimum penalties
Bill C-69 also reduced the minimum penalties for failing to file, with the reduction applied retroactively to the inception of the Act on January 1, 2022. Before the amendments, the minimum penalty was $5,000 for individuals and $10,000 for corporations, per property. After the amendments, those minimums dropped to $1,000 for individuals and $2,000 for corporations, per property. Because the penalty applies per property and per filing year, a corporation holding two residential properties that failed to file faces a minimum exposure of $4,000 for a single year.
Sorting through which penalty figure applies to which year is genuinely complex, and it is one area where folding UHT compliance into a broader corporate tax planning strategy pays off. UHT is rarely an isolated issue; it usually sits alongside other planning and filing considerations for a corporation that holds property.
UHT Filing Requirements in Canada: The April 30 Deadline
The UHT return for a given calendar year is due by April 30 of the following year. For the 2024 calendar year, that meant a deadline of April 30, 2025. When April 30 falls on a weekend or a CRA-recognized public holiday, the deadline shifts to the next business day, as confirmed on CRA's guidance on when to file.
Filing is done separately for each residential property. A corporation that owns three residential properties must file three separate UHT-2900 returns for each applicable year. Returns may be submitted electronically or by mail.
For historical context, CRA granted transitional penalty relief that effectively extended the practical filing window for the 2022 returns through April 30, 2024. That relief is no longer operative. For any year that still requires a return, the standard April 30 framework governs, and a late return invites the minimum penalty.
My Corporation Has to File. Can We Claim an Exemption from the Tax?
If your corporation is an affected owner for a given year, it must file, but filing does not mean writing a cheque. The Act provides several exemptions that can reduce the tax owed to zero. The exemption is claimed on the return itself; it is never applied automatically.
The most relevant exemptions for corporate owners include:
- Qualifying occupancy. The property is occupied for at least 180 days in the calendar year by a qualifying tenant under an arm's-length written lease, or by a related individual in certain defined circumstances.
- Primary place of residence. A dwelling unit in the property serves as the primary place of residence of the owner, or of the owner's spouse or common-law partner. This arises for corporations that hold property occupied by an individual connected to the company.
- New construction or limited habitability. Certain exemptions apply to newly constructed properties or to properties that are not suitable for year-round use.
- Death of an owner. Specific relief applies in the year an owner dies and, in some cases, shortly afterward.
CRA's Questions and Answers on the UHT walk through these scenarios in more detail. The recurring lesson bears repeating: even where an exemption clearly applies and no tax is owed, the affected owner must still file UHT-2900 and claim that exemption on the form. A missed filing triggers the minimum penalty regardless of whether any tax was due.
Budget 2025: The UHT Is Being Eliminated. What That Means for Your Corporation
The headline news is that the Underused Housing Tax in Canada is on its way out. Canada's 2025 federal budget, tabled on November 4, 2025, proposed eliminating the UHT effective the 2025 calendar year. That proposal became law through Bill C-15, the Budget 2025 Implementation Act, No. 1, which received royal assent on March 26, 2026.
The effect is clean. No UHT is payable and no UHT returns are required for the 2025 calendar year or any year afterward, and the Underused Housing Tax Act and its regulations are repealed. The government framed the change as a simplification, describing the tax as costly to administer relative to the modest revenue it generated, as set out in the Budget 2025 tax measures.
There is a critical caveat, and it is the reason this article exists. The repeal does not reach backward. Obligations for the 2022, 2023, and 2024 calendar years survive in full, along with any penalties and interest associated with failures to file or pay for those years. CRA retains the authority to pursue non-compliance for the period when the Act was in force.
In practical terms, a corporation that was an affected owner and never filed for 2022, 2023, or 2024 is still exposed, and the repeal changes nothing about that exposure. The minimum penalty clock has been running on those unfiled years. The sensible course is to identify any outstanding returns and file them as promptly as possible, ideally with professional guidance, rather than to assume the repeal has wiped the slate clean.
UHT Compliance Checklist for Canadian Corporations
If your corporation owns residential property, the following sequence will help you assess where you stand for each year the UHT was in force.
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Confirm the property is "residential property." A house with three or fewer units, a residential condominium unit, or a semi-detached or rowhouse unit falls within scope. A commercial building or an apartment complex with four or more units does not.
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Determine your owner category for each year. For 2022, a private Canadian corporation was an affected owner with a filing obligation. For 2023 and 2024, a specified Canadian corporation with less than 10% foreign ownership was an excluded owner with no obligation, while a corporation with 10% or more foreign ownership remained an affected owner.
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Check for any unfiled returns from 2022 through 2024. If your corporation was an affected owner in a year and did not file, that return is still outstanding and penalties continue to accrue.
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Estimate your penalty exposure. The minimum is $2,000 per property per missed year for corporations under the post-2024 figures (applied retroactively to 2022), applied separately to each property and each year.
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File UHT-2900 separately for each property. One form per property, per applicable year.
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Claim any available exemption on the return. Qualifying occupancy, primary residence, and the other exemptions are not automatic; they must be claimed on the form.
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Disregard 2025 and later. The UHT is repealed, so no returns are required for the 2025 calendar year or any year after.
Frequently Asked Questions
Do I have to file the UHT return if I owe no tax?
Possibly, yes. If your corporation was an affected owner for a given year, it had to file Form UHT-2900 for each residential property even when an exemption reduced the tax to zero. The filing obligation and the tax liability are separate. Failing to file, on its own, triggered the minimum penalty.
What is a specified Canadian corporation for UHT purposes?
A specified Canadian corporation is a corporation incorporated or continued under Canadian federal or provincial law where, on December 31, less than 10% of its equity value or voting rights is owned or controlled by foreign individuals or foreign-incorporated corporations. Starting with the 2023 calendar year, these corporations became excluded owners with no UHT filing obligation.
What is the penalty for not filing the underused housing tax?
After the 2024 amendments (applied retroactively to 2022), the minimum penalty for a corporation that failed to file is $2,000 per property, per year, reduced from the earlier $10,000 minimum. The penalty applies separately to each residential property and each unfiled year, so exposure adds up quickly for a corporation holding multiple properties.
Does the underused housing tax apply to rental properties?
The UHT could apply to a corporately owned rental property if the property met the definition of residential property and the corporation was an affected owner. An exemption applied where the property was occupied for at least 180 days by a qualifying tenant under an arm's-length written lease. The owner still had to file and claim the exemption on the return.
Is the underused housing tax being eliminated in Canada?
Yes. Bill C-15 received royal assent on March 26, 2026, implementing the Budget 2025 proposal to repeal the UHT effective the 2025 calendar year. No returns are required and no tax is payable for 2025 or later. Obligations for 2022, 2023, and 2024 are unaffected and continue to apply.
What is Form UHT-2900?
Form UHT-2900 is the annual Underused Housing Tax Return and Election Form that affected owners had to file with CRA for each residential property they owned. It is used both to report the tax and to claim any applicable exemption. A separate return was required for each property, due by April 30 of the following year.
Sources & Official Resources
Federal Statutes Cited
- Underused Housing Tax Act (SC 2022, c. 5, s. 10): Full Text
- Budget 2025 Implementation Act, No. 1 (Bill C-15): Royal Assent March 26, 2026
CRA Guidance and Notices 3. UHTN1: Introduction to the Underused Housing Tax 4. UHTN4: Exemptions for Specified Canadian Partnerships, Trusts and Corporations 5. UHTN15: Questions and Answers on the Underused Housing Tax 6. CRA: Who Must File a Return and Pay the Tax 7. CRA: When to File the Return and Pay the Tax
Budget and Legislative Sources 8. Budget 2025: Tax Measures: Supplementary Information (UHT Repeal)
Contact Hadri Law
If your corporation holds residential property and you are uncertain whether you have outstanding UHT filing obligations for 2022, 2023, or 2024, the penalty exposure is real, and the clock has not stopped simply because the tax is being repealed. Sorting out which years require a return, whether your corporation qualified as a specified Canadian corporation, and how to file with the right exemptions claimed is exactly the kind of work that benefits from experienced corporate tax counsel.
Martina Caunedo, the tax lawyer at Hadri Law, brings more than 12 years of international tax experience, including CRA audit defence and taxpayer advocacy through objections and Tax Court appeals. Whether you need help assessing past filings or broader support from our corporate lawyers, we are ready to help you get it right.
Call +1 (437) 974-2374 for a free consultation, or book online at calendly.com/hadrilaw/free-consultation. We serve clients in English, French, Spanish, and Catalan.
This article provides general information and is not legal or tax advice. Every situation is different. Contact a lawyer to discuss your specific circumstances.
